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- filesystem type "8e" or "fd" -- plz help
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тАО04-29-2005 04:36 PM
тАО04-29-2005 04:36 PM
I have created a volume group named "vol1", containing three PVs, which have their filesystem type "8e". and in vol1 i have created two lvms named lvm1 and lvm2.
now i want to create Raid 1, consisting lvm1 and lvm2 .. is it possible ?
I m asking this question bcause, to create a Raid, i always set the filesystem type of the partition "fd", while to create a lvm, the pv filesystem type must be "8e"
So i m confuse.
Plz help me
Thanks n Regards
Maaz
now i want to create Raid 1, consisting lvm1 and lvm2 .. is it possible ?
I m asking this question bcause, to create a Raid, i always set the filesystem type of the partition "fd", while to create a lvm, the pv filesystem type must be "8e"
So i m confuse.
Plz help me
Thanks n Regards
Maaz
Solved! Go to Solution.
2 REPLIES 2
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тАО04-29-2005 05:39 PM
тАО04-29-2005 05:39 PM
Solution
Setting up raid on top of LVM is the wrong way around.
Normally you'd set up LVM on top of RAID, so the entire LVM has the stability of a raid-contaier backend.
As you've got it currently, if any of the LVM stuff dies, all of your raid and filesystems die. i.e. if a disk dies.
The other way around, if you create RAID first, and LVM over the RAID, if a disk dies, the redundant array keeps the LVM intact.
As VLM's dont have 'partitions' or a 'partition table', there's no way to set a partition-type.
Normally you'd set up LVM on top of RAID, so the entire LVM has the stability of a raid-contaier backend.
As you've got it currently, if any of the LVM stuff dies, all of your raid and filesystems die. i.e. if a disk dies.
The other way around, if you create RAID first, and LVM over the RAID, if a disk dies, the redundant array keeps the LVM intact.
As VLM's dont have 'partitions' or a 'partition table', there's no way to set a partition-type.
One long-haired git at your service...
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тАО05-30-2007 10:13 PM
тАО05-30-2007 10:13 PM
Re: filesystem type "8e" or "fd" -- plz help
Thank Dear Stuart ;) and sory for ack tooo late ;(
Once again Thanks
Regards
Maaz
Once again Thanks
Regards
Maaz
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